写不下去了

query.go

@@ -8,6 +8,7 @@ import (
 	"time"
 
 	"go.mongodb.org/mongo-driver/bson"
+	md "go.mongodb.org/mongo-driver/mongo"
 	"myschools.me/suguo/mongo-example/mongo"
 )
 
@@ -84,6 +85,11 @@ func queryResult() {
 	collection := client.Database("example").Collection("booking")
 	book := &Booking{}
 	if err := collection.FindOne(ctx, bson.M{"_id": "63d20bb744ecbc6b61a283ef"}).Decode(&book); err != nil {
+		if err == md.ErrNoDocuments {
+			//这里的md是mongo，我们封名名需要修改
+			fmt.Println("record does not exist")
+			return
+		}
 		log.Fatal(err)
 	}
 	fmt.Println(book)